package com.sunny.controller;

import com.sunny.enums.ResultEnum;
import com.sunny.exception.SellException;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.api.impl.WxMpServiceImpl;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.net.URLEncoder;

/**
 * Created by dell on 2018/4/12.
 */
@Controller
@RequestMapping("/wechat")
@Slf4j
public class WechatController {
    @Autowired
    private WxMpService wxMpService;

    @GetMapping("/authorize")
    public String  authorize(@RequestParam("returnUrl")String returnUrl){
        //1.配置
        //2.调用方法
        String url="http://sell.natapp4.cc/sell/wechat/userInfo";
        String redirectUrl = wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAUTH2_SCOPE_USER_INFO, URLEncoder.encode(returnUrl));
        log.info("[微信网页授权]获取code,result={}",redirectUrl);
        return "redirect:"+redirectUrl;
    }

    @GetMapping("/userInfo")
    public String userInfo(@RequestParam("code")String code,
                         @RequestParam("state")String returnUrl)  {
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken=new WxMpOAuth2AccessToken();
        try {
            wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);
        }catch (WxErrorException e){
            log.error("[微信网页授权]{}",e);
            throw new SellException(ResultEnum.WX_MP_ERROR);
        }
        String openId = wxMpOAuth2AccessToken.getOpenId();
        return "redirect:"+returnUrl+"?openid="+openId;
    }

}
